IDNLearn.com: Where your questions are met with thoughtful and precise answers. Discover detailed answers to your questions with our extensive database of expert knowledge.

PLEASE HELP FOR 25 POINTS. PLEASE EXPLAIN ANSWER


Erin works out the same amount of time each day. Some days, he runs 5 miles. Other days, he walks 2 miles. He walks 4.2 mph slower than he runs. Determine how fast he runs and how long his workout takes.